26245561825 has 24 divisors (see below), whose sum is σ = 37280113920. Its totient is φ = 17955148800.

The previous prime is 26245561807. The next prime is 26245561873. The reversal of 26245561825 is 52816554262.

It is not a de Polignac number, because 26245561825 - 2²⁹ = 25708690913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98560 + ... + 249409.

It is an arithmetic number, because the mean of its divisors is an integer number (1553338080).

Almost surely, 2^26245561825 is an apocalyptic number.

26245561825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26245561825 is a deficient number, since it is larger than the sum of its proper divisors (11034552095).

26245561825 is a wasteful number, since it uses less digits than its factorization.

26245561825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348417 (or 348412 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 46.

It can be divided in two parts, 26245 and 561825, that added together give a triangular number (588070 = T₁₀₈₄).

The spelling of 26245561825 in words is "twenty-six billion, two hundred forty-five million, five hundred sixty-one thousand, eight hundred twenty-five".